Metal port and end-wall construction for regenerative furnaces.



J. B. McKENNAN & F. B. PARKS.

METAL PORT AND END WALL CONSTRUCTION FOR REGENERATIVE FURNACES.

APILIOATIOH PIZED HAB- 15. 1909.

Pate nted Aug. 24. 1909.

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932,41 1. Patented Aug. 24. 1909.

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J. BL MoKENNAN & F. E. PARKS. METAL PORT AND END Z WALL GONSTRUGTION POE REGENERATIVE FURNACES.

APPLIOATIOH FILED MAE-16. 1909.

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APPLICATION IILED NAB. 15, 1909.

932,41 1. Patented Aug. 24. 1909.

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To all whom tt may concern:

-' =Be it known that we, J ACQB B. MOKENNAN and FRANK E. PARKS, citizens of the United States, residing at Pueblo, in the county of Pueblo and-State of Colorado, have invented certain new and useful Improvements in Metal Port and End-Wall Construction for Regenerative Furnaces, of'which the following is a specification.

' Our invention rel-ates to metallurgical furnaces, particularly to the ports and end-wall construction of regenerative furnaces, andits objects are further to simplify theconstruction shown in the application of Jacob B. McKennan, Serial No. 419,690; while ef-' fectin further economies not readily secured by the construction therein shown, and

' without sacrificing any of the advantages proved type of furnace, showi thereo'f.

In the drawings-Figurelis a longitudinal ceiitralsection off one half of our imat the left end thereof, in sectiomme eYn odiment 01 our improved port construction adapted to furnaces in which" ,;;he gas regenerators are located between theaifregenerators; Fig. 2 is a plan of the ports shown' Fig. 1, on the line 22,/the1 eof;'- lig. 3 isa section on the line 33 of Fig. 1, looking in the direction tweenthegas regenerators'; Fig. 5 is a plan of the arrows; Fi 4 is a section symmetrical with Fig. 1 s owing at the right'end a modification of t e port structure adapted to furnaces in which the air 'regenerators lie beof the port arrangement ofFig. 4,011 the line 5%5; thereof Fig. 6 is a sectional View simi-' 'lari'to Fig, 1, showing a port structure adapt- 'ed to, furnaces inwhich the regeli'erators havecither relative, position and in which the furnace end of the air ports not only overlie but partly embrace the gas ports; Fig. 7 is a plan of the inodifiedport struc ture of Fig. (3; Fig. 8 is a section on the line S8 of Fig. 6; Fig. 9 is a section on the plane 99 of Fig. 6, lookingdownwardly; Fig. 10 is a synnl-ietrical section of a furnace having air regeneratoi's only and having fittings for supplying natural gas or oil as fuel; Fig. 11 is a plan of the port structure of Fig. 10; and Fig.'12 is a'section on the line 1212 of. Fig. 10, looking in the direction otthe arrows. l

As described, in the application above mentioned, theports, flue-walls and breastwalls of regenerative furnaces as ordinaril constructed-{are gradually fused in the big temperatures developed, and waste away intothe uptakes or sla -pockets, gradually filling Specification of Letters Patent. Patented Angfii, 9m Application filed name 15,1909. Serial in. 423,473. t

metal structure" which constitutesgthe end- H wall and contains the port openin s; the

whole restin upon, the uptake W213 ls and against'the; urnace; ends, preterably at an. 'obli ne angle to each; gBy. this means, we

elim atethe use Of breastwall, buckstays,

secure ail-ample supplyandl good circulation of the cooling fluid, and [may also, if desired, utilize the structure for generating steam, without fuel cost and WlthOllt detriment to the operation of the furnace. ,Referring to the several figures, in which like; reference numerals indicate similar parts, '1 is the furnace. chamber, 2'the roof,

Above the uptakes is situated the metal port and end-wall structure comprising a casing 5, the inner'side 6 ofwhich consti- The inclination of the base wall 8 and endwall 6 (preferably about 15) serves to hold the structure in place against the furnace end by reason of its weight alone. If the structure. 1s to be utilized as a steaingen erator, it will,-of course, be inclosed by a top plate 9 having a pipe connection 9 and maybe suitably stayed nternally as will be readily understoodwithout illustration.

' Inthe modification ofFigs. 4 and 5 the structure is adapted to a furnace construe tion in which the air-regenerators lie be: tween the gas-regenerators; the necessary branching of the air-port being illustrated in Fig. 5. The port mouths, viewed from 5 within the furnace, will have the same re l-.

ative arrangement as that lllustrated 1 n Fi 3. y In the modification ofFigs. (3, 7, 8, and 9, the structure may be readily adapted to either arrangement of existing regenerators by aslight variation of the slag-pockets and fines; but, as illustrated, the gas regenerators are located between the air-re enerators. As shown most clearly in Fig. 8, t 1e air-port securing an intimate mixture and combustion. Y v

The modification illustrated in Figs. 10, 11, and 12 is adapted to furnaces having airregenerators only'and equipped to burn natural gas or oil as fuel. under comparatively high pressure, is delivered at 10, 10, through suitable supply-pipes 11, 11; the form shown illustrating a single embodiment of the invention, it being well understood that other arrangements may be complete readily devised by those skilled in the art.

In case oil is used, the burners may be ar- IO ranged alx'ive,'bclow, or at the sides of the air-pmtiqiening and directed to discharge the fuel into the current-of heated air as it enters the furnace from the air-port; as will be readily understood.

itself to establishing and maintaining the air and fuel supplies so as to direct them continuously toward any desired or cutting back occurs at the discharge ends of the ports to dissipate or deflect the incoming currents.

The advantages of our invention result structure, and the certainty, uniformity, and

'efliciency of operation throughout the life of.

the ports. The structure disclosed herein will also efi'ect an enorn'loussaving in the cost of operation by avoiding the necessity of the frequent repairs to ports, breast-walls,

and slag-pockets of the furnace heretofore is curved above and brought quite close to the gas-port at. their delivery ends; thus u S 'lhe gas, usually In all the mmlifications shown, it will be; apparent that our construction readily lends I part of the, hearth, When once so directed, no fusing.

foundnecessary. ,We have further disclosed a means of utilizing the heat given off the ports for the productionof steam 1f 1t is so desired.

by Letters Patent is tegral metal structure comprising an endwall and port structure. =2." In a? regenerative furnace, a self-supporting metal end-Wall unattached to the furnace.

- 3. In a regenerative furnace, a self-supporting, water-cooled end-wall unattached to the furnace. J. Y Y

- 4. In a regenerative furnace, a watercooled metal end-wall inclosing metal portwalls, and havingconnected passagesfor circulating a cooling fluid about said walls.

5.- In a regenerative furnace, an inclosed metal structure comprising; an end-wall, metal-walled port-s passing through said structure, and means for circulating a cooling fluidabout said wall and ports. 6. In a regenerative furnace, an inclosed metal structure comprising an end-wall, said structure having an inclined front portion and chambers forapplying a cooling fluid to said wall and ports. r

7. Int. regenerative furnace, an inclosed metal structure com rising an end-wall, said structure having inc ined front and base portions, and chambers for applying a cooling fluid to said wall and ports.

8. In a regenerative furnace, a single, integral metal' structure comprising an endwall, port-structure and steam-generator.

'9'. In a regenerative furnace, aninclosed metal structure comprising an end wall, metal-walled' ports passing through said structure, means for circulating a cooling fluid about said wall, and ports, and connections for utilizing the steam generated by I I the heat of the furnace gases. from the snnpllcity and durability of the In testimony whereof we affix our signatures in presence of two witnesses.

JACOBB. MOKENNAN. FRANK E. PAR-KS.

itnessest I JAS. H. ROBINSON, A. L. BENZ.

-. aWh'at we claim as new, and desire to secure 

